Question

In a steady state of thermal conduction, temperature of the ends A and B of a 20 cm long rod are 100⁰C and 0⁰C respectively. What will be the temperature of the rod at a point at a distance of 6 cm from the end A of the rod ?

• A. –30⁰C
• B. 70⁰C
• C. 5⁰C
• D. None of these

Answer 1

Answer: (B)

70⁰C

Answer 2

$\frac{100 - T}{6} = \frac{T - 0}{14}$ Ž 1400 – 14 T = 6T Ž 1400 = 20 T

Ž T = 70 ⁰C